Automatic monitoring and sample reserving system for agricultural non-point source pollution

Abstract

The utility model discloses an automatic monitoring and sample reserving system for agricultural non-point source pollution. The automatic monitoring and sample reserving system comprises a sampling unit, a sample reserving unit, a detecting unit and a cleaning unit, the sampling unit is connected with the sample reserving unit, and the sampling unit is used for sampling a water source; the sample reserving unit is used for reserving samples of the water body sampled by the sampling unit; the detection unit is connected with the sampling unit and is used for detecting the sampling water body of the sampling unit; the cleaning unit is connected with the sample reserving unit and the detection unit, and the cleaning unit is used for cleaning the sample reserving unit and the detection unit. According to the system, a water source can be automatically sampled, samples of the sampled water body can be reserved, subsequent more detailed detection on the water body is facilitated, in addition, the system has a cleaning function, insoluble substances in the monitoring and sample reserving process can be cleaned, the system is prevented from being blocked, and normal operation of the system is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of water sample detection, in particular to an automatic monitoring and sample retention system for agricultural non-point source pollution. Background Art

[0002] In recent years, as pollution from industrial and domestic sources has been gradually brought under control, agricultural non-point source pollution has become one of the important constraints on further improving water environment quality. Agricultural non-point source pollution emissions are characterized by randomness, dispersion, and hysteresis, making monitoring and evaluation difficult.

[0003] In order to accurately survey the basic data of agricultural non-point source pollution emissions in plains, a stable and reliable automatic monitoring and sampling system was formed in combination with meteorological conditions. With the net load of agricultural non-point source pollution entering the river as the goal, the proportion of agricultural non-point source pollution entering the river during the flood season and non-flood season, farmland fertilization period and non-fertilization period, rainfall, irrigation and backflow runoff period, and rainstorm strong discharge period was scientifically distinguished, and the key periods of agricultural non-point source pollution emissions were focused on. On the basis of accurate assessment, technical support was provided for promoting agricultural non-point source pollution prevention and control in accordance with local conditions. Utility Model Content

[0004] The utility model aims to provide an automatic monitoring and sampling system for agricultural non-point source pollution, so as to realize rapid monitoring and sampling of agricultural water sources and improve the stability of system operation.

[0005] In order to solve the above technical problems, the utility model provides an automatic monitoring and sampling system for agricultural non-point source pollution, including a sampling unit, a sampling unit, a detection unit and a cleaning unit;

[0006] The sampling unit is connected to the sample retaining unit, and the sampling unit is used to sample the water source;

[0007] The sample retaining unit retains samples of the water sampled by the sampling unit;

[0008] The detection unit is connected to the sampling unit and detects the sampled water of the sampling unit;

[0009] The cleaning unit is connected to the sample retaining unit and the detection unit, and the cleaning unit is used to clean the sample retaining unit and the detection unit.

[0010] Furthermore, the sampling unit includes a plurality of sampling pumps, the input ends of the sampling pumps are arranged in the water source to be sampled, and the output ends of the sampling pumps are connected in parallel and to the sample retention unit.

[0011] Furthermore, a medicine injection port is provided at the output end of the sampling pump.

[0012] Furthermore, the sample retention unit includes a circulation pool and a sample retention sand settling pool;

[0013] The circulation pool is connected to the output end of the sampling pump;

[0014] The sample retaining and grit settling tanks are provided in plurality, and the sample retaining and grit settling tanks are arranged in parallel and connected to the circulation tank.

[0015] Furthermore, the detection unit includes a sample cup and a detection sensor;

[0016] The sample cup is connected to the circulation pool, and the sample cup is used to periodically receive water samples from the circulation pool;

[0017] The detection sensor is arranged in the sample cup, and is used for detecting the water sample in the sample cup.

[0018] Furthermore, a plurality of detection sensors are provided, and an output end of the detection sensor is connected to a display instrument.

[0019] Furthermore, the circulation pool, the sample retention and grit chamber and the sample cup are all provided with discharge ports, and the discharge ports are commonly connected with a discharge pipe.

[0020] Furthermore, the cleaning unit includes a water supply pipeline and a backwash pipeline;

[0021] The water supply pipeline is connected to the circulation pool, the sample retention and sand settling tank and the water inlet side of the sample cup;

[0022] The input end of the backwash pipeline is connected to an air compressor, and the output end of the backwash pipeline is connected to the circulation pool, the sample retention sand settling tank and the drainage side of the sample cup.

[0023] Compared with the prior art, the utility model has at least the following beneficial effects:

[0024] The utility model can automatically sample water sources and retain samples of the sampled water, which is convenient for subsequent more detailed testing of the water body. In addition, the system is equipped with a cleaning function, which can clean insoluble matter in the monitoring and sampling process, avoiding system blockage and ensuring the normal operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the utility model agricultural non-point source pollution automatic monitoring and sampling system;

[0026] Figure 2 It is a specific structural diagram of the utility model of the automatic monitoring and sampling system for agricultural non-point source pollution. DETAILED DESCRIPTION

[0027] The following will be combined with the schematic diagram to describe the automatic monitoring and sample retention system of agricultural non-point source pollution of the utility model in more detail, wherein the preferred embodiment of the utility model is shown, and it should be understood that those skilled in the art can modify the utility model described herein, and still achieve the beneficial effects of the utility model. Therefore, the following description should be understood as being widely known to those skilled in the art, and not as a limitation to the utility model.

[0028] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0029] like Figure 1 and Figure 2 As shown, the embodiment of the utility model proposes an automatic monitoring and sampling system for agricultural non-point source pollution, including a sampling unit 1, a sampling unit 2, a detection unit 3 and a cleaning unit 4;

[0030] The sampling unit 1 is connected to the sample retaining unit 2, and the sampling unit 1 is used to sample the water source;

[0031] The sample retaining unit 2 retains samples of the water sampled by the sampling unit 2;

[0032] The detection unit 3 is connected to the sampling unit 1 and detects the sampled water of the sampling unit 1;

[0033] The cleaning unit 4 is connected to the sample retaining unit 2 and the detection unit 3 , and the cleaning unit 4 is used to clean the sample retaining unit 2 and the detection unit 3 .

[0034] In this embodiment, the sampling unit 1 collects water samples from the water source in real time and transmits them to the sample retention unit 2. The sample retention unit 2 retains the sampled water body, which is convenient for further detailed detection of the sampled water body. At the same time, the detection unit 3 monitors the collected water body in real time, and displays the detection results in real time through the instrument, which is convenient for the monitoring personnel to understand the monitoring results intuitively. When the water sample monitoring work is suspended or stopped, the cleaning unit 4 cleans the sample retention unit 2 and the detection unit 3, and can clean the adsorbed substances on the inner wall of the sample retention unit 2 and the detection unit 3 and the sediment on the bottom to avoid blockage, thereby improving the stability of the system operation.

[0035] Furthermore, the sampling unit 1 includes a plurality of sampling pumps 5 , the input end of the sampling pump 5 is arranged in the water source to be sampled, and the output ends of the sampling pump 5 are connected in parallel and connected to the sample retention unit 2 .

[0036] Specifically, when it is necessary to sample the water source to be sampled, the input end of the sampling pump 5 is connected to the water source to be sampled through a pipeline. When one of the sampling pumps 5 is turned on, the sampled water can be transported to the sample retention unit 2 to complete the water sampling operation.

[0037] Among them, multiple sampling pumps 5 are provided, which can be used as standby when the sampling pump 5 fails. In addition, when one of the sampling pumps 5 is working, the other sampling pumps 5 are turned off and the output ends are closed (electric valves can be used to close), ensuring the smooth progress of water sampling.

[0038] In a specific embodiment, the output end of the sampling pump 5 is provided with a reagent injection port 6. Since the sampled water contains algae, in order to effectively inhibit the growth of algae and slime, an algaecide is added through the reagent injection port 6. The algaecide is added before the sampled water enters the sample retention unit 2.

[0039] Algaecides have good bactericidal and algaecidal abilities within different pH ranges, can effectively inhibit algae reproduction and slime growth, and have dispersing and penetrating effects, can penetrate and remove slime and peel off attached algae. In addition, they also have degreasing capabilities.

[0040] Furthermore, the sample retention unit 2 includes a circulation pool 7 and a sample retention sand settling pool 8.

[0041] Specifically, the circulation pool 7 is connected to the output end of the sampling pump 5 .

[0042] The sample retaining and grit settling tanks 8 are provided in plurality, and the sample retaining and grit settling tanks 8 are arranged in parallel and connected to the circulation tank 7 .

[0043] In this embodiment, the water pumped by the sampling pump 5 is transported to the sample retention grit chamber 8 for sample retention, and the sampled water is transported to the detection unit 3 for detection. After the sampled water in the sample retention grit chamber 8 is precipitated, clear liquid can be extracted from the upper part of the sample retention grit chamber 8 for further detailed detection.

[0044] It should be noted that a plurality of sample retention and grit chambers 8 are provided, and multiple samples can be retained according to actual needs, such as samples retained in different time periods.

[0045] Furthermore, the detection unit 3 includes a sample cup 9 and a detection sensor 10 .

[0046] Specifically, the sample cup 9 is connected to the circulation pool 7 , and the sample cup 9 is used to periodically receive water samples from the circulation pool 7 .

[0047] The detection sensor 10 is disposed in the sample cup 9 , and the detection sensor 10 is used to detect the water sample in the sample cup 9 .

[0048] In this embodiment, the sampling pump 5 delivers the sampled water to the sample cup 9, and the detection sensor 10 located in the sample cup 9 detects the sampled water. There are multiple detection sensors 10, which can perform various detections on the parameters of the sampled water, such as conductivity sensors, pH sensors, etc.

[0049] In addition, in order to conveniently and intuitively display the detection results of the sampled water body, a display instrument 11 is connected to the output end of the detection sensor 10.

[0050] In order to facilitate the discharge of water from the sample retention unit 2 and the detection unit 3, the circulation pool 7, the sample retention sand settling tank 8 and the sample cup 9 are all provided with discharge ports, and the discharge ports are commonly connected with a discharge pipe.

[0051] Furthermore, the cleaning unit 4 includes a water supply pipeline 12 and a backwash pipeline 13 .

[0052] Specifically, the water supply pipeline 12 is connected to the circulation pool 7 , the sample retention and grit chamber 8 and the water inlet side of the sample cup 9 .

[0053] The input end of the backwash pipeline 13 is connected to an air compressor 14 , and the output end of the backwash pipeline 13 is connected to the flow pool 7 , the sample retention sand settling tank 8 and the drainage side of the sample cup 9 .

[0054] In this embodiment, after the system completes the monitoring and sample retention tasks, the cleaning unit 4 performs a backwash operation on the sample retention unit 2 and the detection unit 3 to ensure the cleanliness of the system, specifically:

[0055] After the high-pressure gas generated by the air compressor 14 enters the circulation pool 7, the sample grit chamber 8 and the sample cup 9, the vibration and scrubbing effect generated by the rising air bubbles can remove the attachments on the inner walls of the circulation pool 7, the sample grit chamber 8 and the sample cup 9 and drop them onto the water body. Subsequently, water is injected into the circulation pool 7, the sample grit chamber 8 and the sample cup 9 through the water supply pipeline 12, and the drainage is opened at the same time, so that the attachments in the circulation pool 7, the sample grit chamber 8 and the sample cup 9 can be removed.

[0056] Compared with the prior art, the utility model has at least the following beneficial effects:

[0057] The utility model can automatically sample water sources and retain samples of the sampled water, which is convenient for subsequent more detailed testing of the water body. In addition, the system is equipped with a cleaning function, which can clean insoluble matter in the monitoring and sampling process, avoiding system blockage and ensuring the normal operation of the system.

[0058] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An automatic monitoring and sampling system for agricultural non-point source pollution, characterized in that: It includes a sampling unit, a sample retention unit, a detection unit and a cleaning unit; The sampling unit is connected to the sample retaining unit, and the sampling unit is used to sample the water source; The sample retaining unit retains samples of the water sampled by the sampling unit; The detection unit is connected to the sampling unit and detects the sampled water of the sampling unit; The cleaning unit is connected to the sample retaining unit and the detection unit, and the cleaning unit is used to clean the sample retaining unit and the detection unit.

2. The automatic monitoring and sampling system for agricultural non-point source pollution according to claim 1, characterized in that: The sampling unit comprises a plurality of sampling pumps, the input ends of the sampling pumps are arranged in the water source to be sampled, and the output ends of the sampling pumps are connected in parallel and connected to the sample retaining unit.

3. The automatic monitoring and sampling system for agricultural non-point source pollution according to claim 2, characterized in that: The output end of the sampling pump is provided with a medicine injection port.

4. The automatic monitoring and sampling system for agricultural non-point source pollution according to claim 2, characterized in that: The sample retention unit includes a circulation pool and a sample retention sand settling pool; The circulation pool is connected to the output end of the sampling pump; The sample retaining and grit settling tanks are provided in plurality, and the sample retaining and grit settling tanks are arranged in parallel and connected to the circulation tank.

5. The automatic monitoring and sampling system for agricultural non-point source pollution according to claim 4, characterized in that: The detection unit includes a sample cup and a detection sensor; The sample cup is connected to the circulation pool, and the sample cup is used to periodically receive water samples from the circulation pool; The detection sensor is arranged in the sample cup, and is used for detecting the water sample in the sample cup.

6. The automatic monitoring and sampling system for agricultural non-point source pollution according to claim 5, characterized in that: The detection sensors are provided in plurality, and the output end of the detection sensor is connected to a display instrument.

7. The automatic monitoring and sampling system for agricultural non-point source pollution according to claim 5, characterized in that: The circulation pool, the sample retention and sand settling pool and the sample cup are all provided with discharge ports, and the discharge ports are commonly connected with a discharge pipe.

8. The automatic monitoring and sampling system for agricultural non-point source pollution according to claim 5, characterized in that: The cleaning unit includes a water supply pipeline and a backwash pipeline; The water supply pipeline is connected to the circulation pool, the sample retention and sand settling tank and the water inlet side of the sample cup; The input end of the backwash pipeline is connected to an air compressor, and the output end of the backwash pipeline is connected to the circulation pool, the sample retention sand settling tank and the drainage side of the sample cup.

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